Which Situation Would Most Likely Cause an Audiovisual Mirror Neuron

 Which situation would most likely cause an audiovisual mirror neuron to fire

A) when the monkey only hears the sound of breaking glass
B) when the monkey sees a peanut breaking and hears the sound of the peanut breaking
C) when the monkey sees a stick being dropped and hears the sound of the peanut breaking
D) when the monkey grasps the peanut and sees the experimenter grasps the peanut with pliers